Home / rest of / Carver Laboratory Presses Carver Laboratory Presses These precision Compression Molders are the industry standard. They are available in two and four tie bar configurations and with a wide range of platen sizes and tonnage. They maybe Heat only or have a Heat and Cool capability. Manual and automated opening and closing presses are available for all applications. Pictured is a two tie bar economy Compression Molder manufactured by Carver. These compression molders are used to make plaques for physical testing, checking color and testing for resin specking and contamination. These are just a few of the uses for this versatile equipment. A variety of test molds are available in Aluminum and Steel.